Kinetic and potential energy - Physics.
What has this got to do with the principle of creation-sustenance-dissolution?
You must know that after the universe comes into existence, it stays that way for 4.32 billion years.
Then it dissolves.
There is nothing for the next 4.32 billion years, then again the universe comes back.
We know that the universe as we see and experience around us consists of objects and energies.
They interact with each other and this is what we perceive as action.
Even matter, we know is dense energy, vibrations.
So the universe is vibrations.
What does it mean?
It is energy in action, energy in motion - kinetic energy.
Even when an object simply exists, motionless, even then it is just vibrations.

Then what happens when the universe dissolves?
Kinetic energy is converted into potential energy.
Inert, inactive but with the potential to act.
Potential to again become the universe.
This state is what our scriptures call Tirobhava.
The whole kinetic energy which has manifested as the universe gets converted into potential energy ready for the next call to action.

Compare this to a hydroelectric project.
Water stored in the reservoir only has potential energy.
But when it is released, it turns the turbine and produces electricity.
Electricity lights lamps, runs machines, becomes movies, becomes music and a whole lot of such things.
The creation - sustenance - dissolution cycle is also like this.